Home / 49,479.36-74,222.40-19,897.20

Finding the Fourth Proportional to 49,479.36, 74,222.40 and 19,897.20

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Solution

The fourth proportional to 49,479.36, 74,222.40 and 19,897.20 is: 29,847.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,479.36 : 74,222.40 = 19,897.20 : x
  2. Step 2: Convert to fraction form
    49,479.36/74,222.40 = 19,897.20/x
  3. Step 3: Cross multiply
    49,479.36x = 74,222.40 × 19,897.20
  4. Step 4: Simplify right side
    49,479.36x = 1,476,817,937.28
  5. Step 5: Solve for x
    x = 1,476,817,937.28/49,479.36
  6. Step 6: Final answer
    x = 29,847.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.